Sable · Question
What is the difference between GHK-Cu and Oxytocin?
GHK-Cu is a copper(II) complex of the tripeptide GHK, first identified in human plasma, and widely studied in skin-biology, cosmetic-science and wound-model research (peptide-copper complex, MW about 402.92 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between GHK-Cu and Oxytocin?
GHK-Cu is a copper(II) complex of the tripeptide GHK, first identified in human plasma, and widely studied in skin-biology, cosmetic-science and wound-model research (peptide-copper complex, MW about 402.92 g/mol).
Which is heavier, GHK-Cu or Oxytocin?
GHK-Cu has a molecular weight of about 402.92 g/mol and Oxytocin about 1007.2 g/mol (PubChem), so Oxytocin is heavier by 604.3 g/mol, a ratio of 2.5. This means 1 mg of GHK-Cu contains 2,481.9 nmol versus 992.9 nmol for Oxytocin.
How many mg of Oxytocin are equimolar to 1 mg of GHK-Cu?
1 mg of GHK-Cu (MW 402.92) is 2,481.9 nmol. The same number of moles of Oxytocin (MW 1007.2) weighs 2.5 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHK-Cu and Oxytocin
PubChem lists GHK-Cu as C14H23CuN6O4+ (402.92 g/mol) and Oxytocin as C43H66N12O12S2 (1007.2 g/mol). GHK-Cu is a peptide-copper complex; Oxytocin is a cyclic nonapeptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of GHK-Cu equals how many mg of Oxytocin in moles?
5 mg of GHK-Cu (MW 402.92) is 12.409 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 12.499 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 50 mg vial of GHK-Cu equals how many mg of Oxytocin in moles?
50 mg of GHK-Cu (MW 402.92) is 124.1 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 125 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of GHK-Cu equals how many mg of Oxytocin in moles?
10 mg of GHK-Cu (MW 402.92) is 24.819 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 24.998 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of GHK-Cu equals how many mg of Oxytocin in moles?
20 mg of GHK-Cu (MW 402.92) is 49.638 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 49.995 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of GHK-Cu equals how many mg of Oxytocin in moles?
30 mg of GHK-Cu (MW 402.92) is 74.456 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 74.993 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 100 mg vial of GHK-Cu equals how many mg of Oxytocin in moles?
100 mg of GHK-Cu (MW 402.92) is 248.2 µmol. The same amount of Oxytocin (MW 1007.2) would weigh 250 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Oxytocin equals how many mg of GHK-Cu in moles?
2 mg of Oxytocin (MW 1007.2) is 1.986 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 0.8001 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Oxytocin equals how many mg of GHK-Cu in moles?
5 mg of Oxytocin (MW 1007.2) is 4.964 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 2 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A CoA for every lot; each vial carries a printed lot number that matches it. Ask with the lot number and we send it.
Cite this
Research use only. Not for consumption. No health claims.
Plain
Sable Peptides. (2026). What is the difference between GHK-Cu and Oxytocin?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-oxytocin/#sqa-038902
APA
Sable Peptides. (2026, October 11). *What is the difference between GHK-Cu and Oxytocin?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-oxytocin/#sqa-038902
BibTeX
@misc{sable_#sqa-038902_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHK-Cu and Oxytocin?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-oxytocin/#sqa-038902}},
note = {Accessed 11 October 2026. CC BY 4.0}
}Badge
<a href="https://www.sablepeptides.co.uk/ref"><img src="https://www.sablepeptides.co.uk/badge/ref.svg" alt="Data: UK Research Peptide Reference — Sable Peptides" width="220" height="40"></a>
Date modified: 2026-10-10